Air Filter / Kohler 25 083 02-SPack Size:1Kohler 25 083 02-S, Walker 5090-1Baldwin RS3715, Dealer Choice 15-1212, Donaldson P822686, Fleetguard AF25550, J. Thomas 25-083-02, Laser 93345, Landscaper Express 2508302, Landscaper Express 8302, Oregon 30-708, Rotary 11842Kohler CH25, CH26, CV460-CV493, TH16, TH18, TH520, TH575 and Triad OHC (canister models only)ID: 1 3/4 ", OD: 3 1/2 ", Height: 7 3/8 "